Water-circulation pump for automobile engines



May 13 O. l. PRRCE Filed July 27, 1925 2 sheets-snee?. 1

, A//, D\1 Y XML Liu-m5 my.; .l

lnuentor m'pw n Fyttorneg1 May 13 1924. 1,493,893

o. l. PRICE WATER CIRCULATION PUMP FOR AUTOMOBILE ENGINES Filed Jul'J27. 1923 2 Spams-Sheet 2 Inventor A @Q30/mba B9 M ttomeg Patented May13, 1924.

UTN .11T yEDI S T'A T E OSBORNEQI.' PRICE, JOF FREDERICK,"MARYLANDWATERLCIRCULATION -PIZTMP Application led J'u1y'27,

fo allzu/zam t may concern.' i

Be it known that I, OsonNE I. PRICE, aI citizeny of the United States;Vresiding at Frederick, in the county of yFrederick and State. ofMaryland, have invented a certain new and useful Improvement in a IVaterCirculation Pump for `Automobile Engines, of nvhich the following-iis aspecification.

My invention relates broadly to automobile enginesfand moreparticularlyy to a con` struction vof Water circulating pump arranged tobe conveniently'installed 4;in a thermo-Siphon j Water coolingsystem-for au. tomobile engines.

Oneof the objects of my inventionis to provide'a construction ofwatercirculating pump lfor automobile engine coolingsystems having its.elements kreach individually r movable .to facilitate the Yreplacementof ele-` ments, for repair, and i adji-istment.

Another object ofthe invention is to provide #a construction of Water.circulating pump arranged `to be quickly` installed-in .a thermofsiphonwater coolingisystemvfor au- 1 tomobile engines having itsl parts*arranged so 'that the lubricating system. in tliepump is preventedbeing floodedor reachedby the cooling system` by slight adjustment.which may be madefrom time to time throughout the 'life of the pump.-

Another objectof the rinvention is to pro-` vide a pumpconstruction inwhich the drivingshaft is substantially packedv and Water sealed and.provided` With a circuitous .path f formed .y by the.. .pump shaft'bearing imme-` diatelyiadjacent the impeller, end of .the

pump shaft whereby Wateryfromtlie Water. cooling-system v.is positively,prevented `from entering the-puinpshaft bearing-and lood-,4 ing.- theylubricating system of .the pump.

A still further objectof the invention .is to provide a Wateicirculatingpump for thermo-Siphon Water cooling -systems for automobile engines inwhich the pumpis provided `with -aii adjustable and. removable sleevel.bearing capable of longitudinal: ad.- justment-against the packing`adjacent the` impeller? endr of the;pump `to insurea Water tight-bearingregardless of natural `Wear of the'packing underconditions of long usethroughout tlie life yof 4the` pump..v

UvinVent-imn Will be `more yclearly under-A stood from the followingspecificationand by refeience to theyy accompanying,drawings in which:

Figurelis across sectional, view .showing g FOR "AUTOMOBILE ENGINES.

1923.` SeriaI N0. 654,194.

the construction ofmy Water circulation pump for automobile engines;Fig. 2 is aV Fig. 3 is a vieiv of the pump looking in the directionofthe two blade impeller which Iliave, designed to secure eii'icientWatercirculation; Fig. l is a cross sectional view@ taken on line ofFig. l showingithe yar-V rangement of the pump shaft4 and key `which Iemploy for longitudinally yadjusting the,L

sleeve bearinglin the pump andmaintaining the pump shaft, in desiredpositionby means ofthe adjustable,packingnutg` Fig.,5 is a crossAsectional view takenjon line 5-5 0fy Fig. l showing ,theivick oilerwhich I employ in lubricating;- the pump shaft and bearing; Fig. disadiagrammatic View .illus-.j

tratingthe arrangement ofmy Water circu latingpuinp in a Water coolingsystem for automobileengines; Fig. ,7 is a cross sectional vieiv of, amodified construction of Water `circulating. pump embodying my inj linel8 8 of Fig.; 7 v illustrating the arrangefy vention; Fig. 8 is a crosssectional view on ment of the sleeve bearing employed in my pumpconstruction; -andFig.S) is a perspecfv tive view yofthe removablesleeve bearing which vI employ in the-Umain body of thel pump `With. oneend abutting the packing@i immediately ladjacent the entrance of .the

pump, shaft into the 4water Vconduitand they j other end abuttingv theadjustable ...packingl nut.

Myinvention finds lmrtcular application f be `used as an-auxiliary toengine cool-V ingsystemsl yliavingan insuliicient form of positively.driven Water `circulating pump.

Whcreg-it is foundthat an insufficient raidiating, .surface hasbeenyprovided for the particular conditions Vwhich the engine may InVthermo-.Siphon y coolingqsystems the cooling Water often beA `requiredto fulfill.

reaches a temperature Vclosely adjacent or equal to the boiling point.Continued .operey ation ofthe engine with the.. circulating Wateigathigligtemperature tends `to over heat:

and actually burn the lubricating oil7 even that of the best quality,and the piston and rings tend to expand to such a degree, especiallywhen deprived of the lubricating oil that they seize in the cylinder.This has the tendency of scoring the walls of the cylinders and thefriction produced tends to bind the moving parts so tightly that seriousresults may ensue such as the sticking of the pistons, the burning outof the bearings, and the warping of the valves` all such contingenciesworking to the detriment y of the engine. With overheated lubricatingoil there is a tendency for the explosive gasoline mixture in thecylinders to pass the piston rings into the oil pan resulting in loss ofcompression and inl'ierent loss of power.

In order to meet and overcome the serious disadvantages in thermo-Siphonwater cooling systems as above referred to I have developed the presentconstruction of water circulation pump with a view of maintaining thetemperature of the cylinders below the danger point but at the same timeto have it as high as possible to secure maximum power from the gasburned.

Referring more particularly to the drawings reference character 1represents the main body of the water circulating pump which may beapproximately angular in contour having a flange 2 at one end forconvenient connection to the water cooling outlet 3 on the automobileengine 4L. The other end of the main body 1 may be provided with afiange coupling 5 for connection with the top hose 6 leading to theupper radiator tank 7 included in the usual thermo-Siphon water coolingsystem on automobiles. The main body of the pump is provided with asubstantially tubular cylindrical cast portion 8 extending into thewater conduit formed by the main body 1 as represented at y9. The castportion 8 extends outside of the main body which has been represented byreference character 10; The cast portion 8 forms a substantial extendedbearing for the pump shaft 11. The pump shaft 11 is screw threaded atits extremity which projects into the water conduit formed by the mainbody 1 on which is secured a two blade impeller 141. A shoulder 15 isformed on the shaft 11 against which the impeller 14 abuts when the locknut 16 is screwed upon the end of the shaft at 12. The other end of theshaft 11 is flattened at 17 to enable a pulley 18 to be secured rigidlythereon by means of set screw 19. The shaft 11 is centrally located andaligned within the cast portion 8 by means of a longitudinal, slidableand removable sleeve bearing 20. The cast portion 10 is provided with agroove indent 21 which cooperates with an extended lug 22 on theremovable sleeve bearing 20 to preventrotativey movement thereof. .Theend of the sleeve bearing 20 adjacent the water conduit through the mainbody 1 is pro- 'vided with an annularly chamfered face 23 which bearsagainst the packing 24; secured against the wall 25 of the cast portion9 forming a positive seal to prevent the entrance of water into thebearing from the water conduit in the main body 1.

A wick oiler 26 is provided which screws into a bore 27 in the castportion 10 containing lubricant which is continually supplied to theshaft 11 and the bearing 2O by means of wick 28 which is constantlyurged by spring 29 against the shaft 11 as represented at 30. The wick28 passes through aperture 31 in the sleeve bearing 20.

In Fig. 1 I have illustrated a method of maintaining the impeller shaft11 in alignment in bearing 20. The shaft 11 .is provided with an annulargroove 32 in which a U shaped key 33 is inserted. The cast portion 10 isscrew threaded at 34 to enable the packing nut 35 to be screwed therein.The inner face of the packing nut 35 bears against the portion of theface of key 33 which extends beyond the groove 32. It will be readilyseen that rotation o'f the packing nut 35 in one direction will advancethe bearing sleeve 2O in the direction of the impeller compressing thepacking 24 to insure the proper degree of seal against the entrance ofwater into the bearing. This positive seal eliminates the danger ofwater entering the bearing and flooding the wick oiler. Vithout thispositive seal immediately adjacent the conduit 1 there would be atendency for the water to float out or displace the oil from the cup 26by reason of the oil being lighter than the water thereby endangeringthe pump by continued operation on a dry bearing.

In Fig. 7 I have shown the shaft y11 provided with a shoulder'y The castportion 9 is likewise provided with a cooperating shoulder-37. Thespacing sleeve 38 is provided between the rear of the impeller 14.- andthe end of the cast portion 9 to prevent the shaft from going backward.The cooperating shoulders 36 and 37 prevent the shaft from slidingforward. By this arrangement it is unnecessary to groove the shaft 11 inorder to maintain it in alignment. The packing nut 35 bears directlyupon the end of the bearing sleeve 20 enabling the sleeve to belongitudinally adjusted against the packing at the point of entrance ofthe shaft into the water conduit. The construction illustrated in Fig. 7provides a circuitous path immediately adjacent the shaft at theimpeller end of the pump by reason of the shoulders 36 and 37 increasingthe seal against the entrance of water into the bearing.

In applying `my pump 'construction to thermo-Siphon systems it is onlynecessary to interpose the pump between the outlet of the engine coolingsystem and the top hose as represented in Fig. 6, a belt 40 being loopedover pulley 18 and over the fan belt drive pulley 41. My inventionpermits rapid disassembly and insertion of'individual pump parts andelements of the bearing when repairs or replacements are necessary.

lVhile I have described my invention in a certain limited embodiment itis to be understood that modifications may be made and that I intend nolimitations upon my invention other than are imposed bythe scope of theappended claim.

Having thus described my invention, What I claim and desire to secure byLetters Patent of the United States is as follows A Water circulationpump for automobile engines comprising in ycombination a main bodyforming a Water conduit, a tubular cast portion extending into and outof said conduit forming an inner and outer bearing support, a sleevebearing carried Within said support substantially shorter than saidsupport, a shaft through said sleeve bearing, an impeller secured to theend of said shaft Within said main body, an annular groove in said shaftWithin said outer bearing support, a U shaped removable key carried insaid groove said key having a rim extending beyond the circumference ofsaid shaft, said rim abutting one end of said sleeve, an annular screwthreaded member carried by the extremity of said outer bearing supporthaving a face abutting the opposite side of the rim of said U shaped keywhereby said shaft and sleeve bearing may be longitudinally moved byrotation of said screw threaded member.

OSBORNE I. PRICE.

